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Notes on the types of Absolute Measures of Dispersion

The following are the commonly used absolute measures of dispersion or variability. (i) Range  (ii) Quartile Deviation  (iii) Mean Deviation  (iv) Standard Deviation  (v) Lorenz Curve

By |2011-04-12T18:33:43+00:00April 12, 2011|Notes|Comments Off on Notes on the types of Absolute Measures of Dispersion

Notes on the Usefulness of Measures of Dispersion

It is helpful for determining the reliability of an average. It points out the extent to which the average is the representative of the entire data. It enables comparison of two or more distributions with regard to their variability.

By |2011-04-12T18:33:43+00:00April 12, 2011|Notes|Comments Off on Notes on the Usefulness of Measures of Dispersion

6 properties of a good Measure of Dispersion

Since measures of dispersion are usually called as averages of the second order, they should possess all the qualities of a good average. According to Yule and Kendall, they are as follows :

By |2011-04-12T18:08:27+00:00April 12, 2011|Articles|Comments Off on 6 properties of a good Measure of Dispersion
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